The TIGTA report also noted that the IRS failed to follow its own internal guidelines for sending copies of the tax lien notices to the taxpayer’s representatives in 40% per cent of the cases it sampled. Tax attorneys must be alert to the possiblity, that the IRS is not sending copies of all tax lien notices and other required documents to them. Taxpayers need to send copies of all important notices to their tax lawyers even if they think the IRS should be sending the notices directly to their representatives.